Description
It can't squawk a greeting like its avian namesake , but this parrotfish seems to be saying hello. Like parrots, parrotfish depend on their powerful beaks to feed. While parrots use theirs as nutcrackers, parrotfish use their tooth-lined beaks to scrape seaweed and sponges from hard corals . These deep cleans are essential to coral-reef health, making parrotfish a keystone species in the Great Barrier Reef and other threatened locales.